View source for 20240045061. ACQUISITION OF DISTANCES FROM A SENSOR TO A SCENE simplified abstract (Commissariat à l'Energie Atomique et aux Energies Alternatives)

=ACQUISITION OF DISTANCES FROM A SENSOR TO A SCENE=


==Organization Name==

[[:Category:Commissariat à l'Energie Atomique et aux Energies Alternatives|Commissariat à l'Energie Atomique et aux Energies Alternatives]]


[[Category:Commissariat à l'Energie Atomique et aux Energies Alternatives]]

==Inventor(s)==

[[:Category:Josep Segura Puchades of Grenoble (FR)|Josep Segura Puchades of Grenoble (FR)]][[Category:Josep Segura Puchades of Grenoble (FR)]]

[[:Category:Laurent Frey of Grenoble (FR)|Laurent Frey of Grenoble (FR)]][[Category:Laurent Frey of Grenoble (FR)]]

[[:Category:Anis Daami of Grenoble (FR)|Anis Daami of Grenoble (FR)]][[Category:Anis Daami of Grenoble (FR)]]

==ACQUISITION OF DISTANCES FROM A SENSOR TO A SCENE - A simplified explanation of the abstract==


This abstract first appeared for US patent application 20240045061 titled 'ACQUISITION OF DISTANCES FROM A SENSOR TO A SCENE

==Simplified Explanation==

The present description is about a method of acquiring distances from a sensor to a scene using a laser beam. The method involves a number of consecutive capture sub-phases, each comprising supplying a laser beam with a linearly varying optical frequency over a frequency range, delivering a reference beam and a useful beam from the laser beam, and illuminating the scene with the useful beam while illuminating at least one pixel row with a superposition of the reference beam and a reflected beam. The absolute value of the ratio between the frequency range and the time period is different for each capture sub-phase.

* The method involves using a laser beam with a linearly varying optical frequency to acquire distances from a sensor to a scene.
* The laser beam is split into a reference beam and a useful beam.
* The scene is illuminated with the useful beam, while at least one pixel row is illuminated with a superposition of the reference beam and a reflected beam.
* The frequency range and time period are adjusted differently for each capture sub-phase.

Potential applications of this technology:

* Distance measurement in various fields such as robotics, autonomous vehicles, and industrial automation.
* 3D scanning and mapping of objects and environments.
* Augmented reality and virtual reality applications.
* Object detection and tracking.

Problems solved by this technology:

* Accurate and precise distance measurement.
* Overcoming limitations of traditional distance measurement methods.
* Handling complex scenes with multiple objects and surfaces.
* Dealing with varying lighting conditions.

Benefits of this technology:

* Improved accuracy and precision in distance measurement.
* Faster acquisition of distances compared to traditional methods.
* Ability to measure distances in complex and dynamic scenes.
* Reduced sensitivity to lighting conditions.
* Potential for integration into various devices and systems.


==Original Abstract Submitted==

the present description concerns a method of acquisition of distances from a sensor to a scene, comprising a number n of consecutive capture sub-phases c, with n an integer greater than or equal to  and i an integer index ranging from  to n, each sub-phase ccomprising: supplying a laser beam having an optical frequency (f) linearly varying over a frequency range of width bfor a time period t; delivering, from the laser beam, a reference beam and a useful beam; and illuminating the scene with the useful beam and illuminating at least one pixel row with a superposition of the reference beam and of a reflected beam. an absolute value of a ratio b/tis different for each capture sub-phase c.



[[Category:G01S17/32]]
[[Category:G01S7/481]]
[[Category:G01S7/4911]]